Moving on, I would like to see Harvey Dent as someone Bruce has known since childhood, a close friend and trusted ally. Maybe have him as a good guy in the first movie and then gradually have him start showing his psychological scars and personal demons like in TAS, so that when he finally turns, it really feels like someone we knew and cared about being torn away from us. Perhaps have it play into the Joker's "one bad day" theory somehow.